# Rational and Irrational Numbers

### Popular Tutorials in Rational and Irrational Numbers

#### How Do Different Categories of Numbers Compare To Each Other?

There are a bunch of different categories of numbers such as the rational numbers, the natural numbers, and the integers, just to name a few. See how they all relate to one another by watching this tutorial!

#### What's an Irrational Number?

Is an irrational number just a way to describe a number that's lost its mind? Not really. :) An irrational number is simply a number that cannot be written as a fraction. Check out the definition, learn an important property of these special numbers, and take a look at some examples of irrational numbers.

#### How Do You Estimate the Square Root of a Non-Perfect Square?

Trying to take the square root of a number that is not a perfect square? Think you need a calculator? Think again! This tutorial will show you how to estimate the square root of a number that is not a perfect square without the use of a calculator!

#### How Do You Figure Out if a Square Root is Bigger than Another Number?

Comparing a square root to another number can be rough, unless you remember that squaring is opposite of taking the square root. Then things get much easier! See how it's done in this tutorial.

#### How Do You Convert From Decimal Notation to Scientific Notation?

Trying to convert a really large or really small number to scientific notation? Watch this tutorial and you'll be a pro in no time!

#### How Do You Convert From Scientific Notation to Decimal Notation?

Trying to convert a number in scientific notation to decimal notation? Watch this tutorial and you'll be a pro in no time!

#### What's Scientific Notation?

Sometimes a number is so big (or so small), that it takes a while to write it all down. Luckily, this number can be written quicker using scientific notation! Watch this tutorial and learn about scientific notation.

#### How Do You Order Numbers in Scientific Notation?

Trying to order numbers in scientific notation? This tutorial provides a great example of that! Check it out:

#### How Do You Put Real Numbers in Order?

Ordering numbers from least to greatest? Are the numbers in different forms? To make comparing easier, convert all the numbers to decimals. Then, plot those decimals on a number line and compare them! This tutorial shows you how!